AM-413450 item 12 - Lockwasher

This National Acme replacement lockwasher part number 27915 (item 48-XF) is used in Drive Unit Assembly AM-413450.   View any of the following layout assembly drawings of the complete multispindle attachment for reference.  This replacement part may be used in attachment assemblies that fit numerous size Acme Gridley multi spindle screw machines and/or positions.

Acme Gridley 1-1/4" RB-8 High Speed Drilling Attachment